having the -- i love that. there's a scene in this you do something, i wish the president did at the inaugural was dance. learn to dance. i was bragging about it the other week because these guys like obama don't even bother to take dancing lessons, they go out there and pretend to dance. but you danced in this movie. >> we trained, every moment we weren't on set jen and i were up there training. and she had the lion's share of the part. but there were no dance doubles, that was us. doing a very bipolar dance. >> there was kind of an embarrassing shot in there where she seemed to slip. there's a scene in the movie which i think is the treasure of the movie. we probably don't have the clip. when robert de niro, your dad, realized that your first wife has basically dumped ut isn't the right one, never was the right one. >> oh, yeah. the speech at the end. >> he has this great speech where he goes, she may have loved you once, maybe, but she doesn't love you now. and had this one does. >> that's a great moment. as a matter of fact, when we were shooting that moment the camera operator right after bob did that looked at each other, he had tears in his eyes, and we just thought, wow. it was so beautiful. >> what a dad.